ZCW-Arrays-PersonDetails-BlueJ/PersonHandler.java

import java.lang.StringBuilder;

/**
 * Created by leon on 1/24/18.
 */
public class PersonHandler {
    private final Person[] personArray;

    public PersonHandler(Person[] personArray) {
        this.personArray = personArray;
    }

    public String whileLoop() {
        StringBuilder result = new StringBuilder();
        // assume there is a `counter`
        int counter = 0;
        // while `counter` is less than length of array
        while(counter < personArray.length)
            { // begin loop
                // use `counter` to identify the `current Person` in the array
                Person currentPersonObject = personArray[counter];
                // get `string Representation` of `currentPerson`
                String currentPersonString = currentPersonObject.toString();
                // append `stringRepresentation` to `result` variable
                result.append(currentPersonString);
                counter++;
            } // end loop
        return result.toString();
    }



    public String forLoop() {
        StringBuilder result = new StringBuilder();
        // identify initial value
        //int i = 0;
        // identify terminal condition
        //i < personArray.length;
        // identify increment
        //i++

        // use the above clauses to declare for-loop signature
        for(int i=0; i<personArray.length; i++)
            {// begin loop
                // use `counter` to identify the `current Person` in the array
                Person currentPersonObject = personArray[i];
                // get `string Representation` of `currentPerson`
                String currentPersonString = currentPersonObject.toString();
                // append `stringRepresentation` to `result` variable
                result.append(currentPersonString);
            }// end loop
        return result.toString();
    }



    public String forEachLoop() {
        StringBuilder result = new StringBuilder();
        // identify array's type
        // array of type Person
        // identify array's variable-name
        // name is personArray

        // use the above discoveries to declare for-each-loop signature
        for (Person element : personArray)
            {// begin loop
                // get `string Representation` of `currentPerson`
                String currentPersonString = element.toString();
                // append `stringRepresentation` to `result` variable
                result.append(currentPersonString);
            }// end loop

        return result.toString();
    }


    public Person[] getPersonArray() {
        return personArray;
    }
}